Orchard-heater.



G. D. PILSTEAD.

ORCHARD HEATER.

APPLICATION FILED 001229, 1913.

4 M2 W 1T in wfl 1% a Mm J 8.5 o SB 6 d 2 y m w m r m register with a coresponding plurality of openings in a sleeve, thus regulating theamount of air entering into the stack and "TED STATES PATENT OFFICE. t

CHARLES I). FILSTEAD, 0F LOS ANGELES, CALIFORNIA, ASSIGNOR OF TWO-THIRDS T0 SAMUEL 1B. HAMPTON, OF CORONA, CALIFORNIA.

oncHAmHnA'rEIt.

Specification of .Ztetters i'atent.

Patented Sept. 15, 1914.

Application filed October 29, 1913. Seria1No. 798,024.

To all whom it may concern Be it known that 1, CHARLES D. FILSTEAD, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles, State of California, have invented new and useful Improvements in Orchard-Heaters, of which thefollowing is a specification;

The invention relates broadly to oil burn:

ing orchard heaters and specifically to an improved burner stack with damper for such heaters and of a diffusing draft partition.

The primary object of the invention is to provide an orchard heater of the oil burning type with a combined burner stack and damper afl'ording a means of limiting the vapor or volatile gases arising from the burning oil in the container outside the burner stack together with the air passing into the burner stack, therebyregulating the'degree of combustion.

A further object of the invention is to provide partitions with a plurality of openings, concentric with, or adjacent to the sides adapted to fit within the container extending downward into the receptacle and infront of the draft opening with aspace between the walls of the receptacle and the partitions so that the air entering from without the receptacle will be difi'used in passing through the aperturesof the parti- -tions thereby perfectly mixing with the vapor or gases within the container.

A still further object contemplated in the invention, is to provide partitions with a plurality of openings concentric with or parallel to the walls of the container, adapted to fit within this container andextending below the cover and within the container and opposite the draft openings of the receptacle with a space between the walls and the partitions whereby the air from without the receptacle is diffused downward to the oil surface within the receptacle, intensifying the draft at the surface of the oil and permitting the complete burning of inferior grfades ofoil, no objectionable residue being le t.

lates to a plurality of openings in the stack above the apertureof the cover of the con- 5 ;pass therethrough from the receptacle 5.

tainer which can be brought into or out of thereby providing the proper amount of oxygen for complete combustion.

In the drawings accompanying this specification: Figure 1 is a central vertical longituclinal section through the improved orchard heater, showing a tapered stack and sleeve with their openings registering. Fig. 2 is a transverse section on the line 22 of Fig 1, viewed in the direction indicated by the arrows, showing the relation of theapertures in the two tapered fiues. Fig. 3 is a detail vertical section of a modification of the damper in which the stack is divided into two parts, the upper part being immovable and the lower part being movable. Fig. 4 is an elevation partly in section of a modified form of heater showing a cylindrical receptacle within which is secured a cylindrical shield provided with draft openings. Fig. 5 is aperspective view of the rectangular form of receptacle with the cover removed, showing the method of introducing the partitions therefor, provided with draft openings.

More specifically in the drawings 5 designates a receptacle preferably formed out of sheet metal and pressed into an elongated form of rectangular cross section, having the sidewalls 6 in which are disposed a series of airtentrance apertures 7 which are preferably placed near the top edge of the walls, the end walls 8 and 9 also being providedwith openings 10.

The receptacle is adapted to receive liquid hydrocarbons or other liquid fuel 11, the whole being covered with a metallic cover 12 which is providedwith an opening 1 'upon t e upper edge of the flange Hand of such length as to extend close to the bottom 17 of the fuel receptacle. This sleeve is provided with a plurality of rows of apertures 18 and '19, four being shown of circular configuration in a lower row, the lower :ow being a slight distance below the top of the cover 12 and of sufficient size to freely allow the burning and unconsumed gases to I The upper row 19 are elongated slots annularly disposed close to the top edge of the sleeve and are provided to register with similarly shaped slots formed in the burner stack and admit air. Revolubly mounted within this sleeve is the burner or stack 21 of tubular construction and tapered on the same taper as the sleeve 15, these members being preferably tapered so that they will,

ne'st or pack easily for shipment, the upper portion being provided with a plurality of' rows of apertures 22, 23 and 24 preferably placed in parallel transverse planes, the two lower series being of similar'shape and of the same size as the openings 19 and 18.

\ Preferably disposed above the row of aperand "forming slida le contact therewith,

there being a second bead "26 preferably formed in the burner stack below the series of orifices 24' formed therein which are shown and preferably of the same size and adapted tcregister with the openings 18 in the sleeve 15. The head 26 is adapted to space the burner a distance from the inner periphery of the sleeve 15 so that the burner may readily turn in relation to the sleeve and for this purpose a handle 27 is secured by suitable fastenings to "the outer periphery g 11y understood, the fuel 11 being lgnited of the burner just above the bead 25.

In the modification shown in Fig. 3 a

stack is shown as formed of two parts, the upper part 28 engaging with the flange 29 on the cover 30 which supports the inner sleeve of similar configuration tothe sleeve which rests upon the .flange' 16 of the sleeve 15, the stack extension 3l being adapted to be turned to positiontheope'nings 33 in any desired relation to the openings 18, a handle 35 being secured to the flange 34 by means? of, fastenings 36, the handle extending a through a suitably disposed slot 37 cut in the i burner top 28.

In the modification show n in Fig. 4 the receptacle is shown as circular in plan, this receptacle 40 having openings 41 therein for the'admission of air,- a combined shield and cover 42 being shown, the coverportion hav-' ing an opening providedv with a flange 43 concentrically arranged therein, and the shield portion 44 beingv carrieddown into engagement with the receptacle to a point where a bead 45 is formed upon the walls of the receptacle, and the shieldwalls are bent inwardly and then downwardly to form with the wall of the receptacle a chamber, the shield portion being'provided with parallel rows of apertures 46. A number of these rows are formed on the shield 'projecting below the level of the fuel therein, and

-. is' left out.

15, provided with a number of rowsof'apertures which are adapted toregister with a similar row of apertures formed in the stack burner 50, this burner being similar in form to the stack 21 provided with a fixed handle '51 shown as formed out of wire which completely encircles the burner above'the sup porting bead 52 which bears upon the flange.

53 of the sleeve.

In Fig. 5 is shown the adaptation of the inner partitions similar to the shield 44,'th'e walls 5 5 being spaced a suflicient distance from the end walls and a portion of the side walls so that air entering the openings 10 in the casin is distributed downward through the c amber and enters the openings 56 most adjacent to the top surface of the oil. Immediately opposite the burner stack and its connections the inner wall. 5-5

which rests upon the upper rim of the receptacle 5.

The operation of the burner will be readwithin. the burner, air with oxygen therein with the heated gases which escape from the receptacle through the regulated openings 18 and 24 in the burner stack 21-where more air is admitted through the apertures 23 and 22 and byturningthe stack a perfect reg- The wall 55 has aflange 57 enters through the openings 7 and 10 to miic 4 ings adapted to be supported within said sleeve, the openings in the inclosed ortions of the sleeve and stack adapted to be rought into or out of register,

' 2. An orchard heater, comprising a recep- 'ta'cle having'draftyopenings therein and an opening in the cover thereof; an apertured sleeve supported within said opening in said cover and projecting within said receptacle, aturnable and apertured burner stack within said sleeve'and adapted to be rotated therein to have certain of its apertures register with the apertures in said sleeve, r

" 3. An orchard heater, comprising a me tallic fuel receptacle having a plurality. of draft openings disposed above the normal fuel line within said receptacle, anapertured. cover therefor having a flange, 1a sleeve'pf tubular form supported in said iii flanged aperture of said cover and projecting Within the fuel within said receptacle and having a plurality of openings in its Walls, a tubular burner stack having a plurality of rows of openings therein adapted to fit withinsaid sleeve and project 11pm said cover and having a plurality of openings within the receptacle, and a burnerstack adapted to fit within said sleeve having a plurality of openings adapted to be broughtinto and out of registration with the before-mentioned openings in the sleeve to regulate the passage of gases from without the stack in the receptacle into the burner stack, and a row of openings in the sleeve Without the receptacle, and a row of openings in the stack without the receptacle adapted tybe brought into and out of registration to regulate the passage of ,air into the stack from without the receptacle.

5. An orchard heater, comprising a receptacle having draft openings therein and an opening in the cover thereof, an apertured sleeve supported within said opening in said cover and projecting Within and without said receptacle, and an apertured burner stack adapted to fit within said sleeve and be moved therein, arranged to have certain of its apertures register with the apertures in said sleeve.

6. An orchard heater, comprislng a metallic fuel receptacle having a plurality of draft openings disposed above the normal fuel line within said receptacle, an apertured cover therefor having a flange, a tubu- 'lar sleeve supported in said flanged aperture of said cover and projecting into the fuel and within and Without said receptacle and having a row of openings in its walls within the receptacle and a row of openings without the receptacle, a tubular burner stack having a plurality of rows of openings therein adapted to fit within said sleeve and project upwardly therefrom, one of said rows of openings registering With the apertures in said sleeve without. the receptacle and another of said rows of openings registering with the apertures in the sleeve within the receptacle and means to move said burner stack in relation to said sleeve to regulate the passage of gases from within the receptacle through the registering rows of openings into the burner stack, and also the regulation of the air entering the stack through the openings from without the receptacle. I

In witness that I claim the foregoing I have hereunto subscribed my name this 15th day" of October, 1913.

CHARLES D. FILSTEAD. 'Witnesses MERLE HAMMOND, MARIE BATTEY. 

